<template>
  <div class="list" ref="wrap">
    <div>
      <div class="area">
        <div class="title border-topbottom">当前城市</div>
        <div class="button-list">
          <div class="button-wrap">
            <div class="button">
              {{this.currentCity}}
            </div>
          </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-topbottom">热门城市</div>
        <div class="button-list">
          <div class="button-wrap"
          v-for="item in hot"
          :key="item.id"
          @click="handleClick(item.name)">
            <div class="button">
              {{item.name}}
            </div>
          </div>
        </div>
      </div>
      <div class="area" v-for="(item, key) in cities" :key="key" :ref="key">
        <div class="title border-topbottom">{{key}}</div>
        <div class="item-list">
          <div @click="handleClick(city.name)" class="item border-bottom" v-for="city in item" :key="city.id">{{city.name}}</div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import Bscroll from 'better-scroll'
import { mapState, mapMutations } from 'vuex'
export default {
  name: 'CityList',
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.wrap)
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        this.scroll.scrollToElement(element)
      }
    }
  },
  computed: {
    ...mapState({
      currentCity: 'city'
    })
  },
  methods: {
    handleClick (city) {
      // this.$store.dispatch('changeCity', city)
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
  }
}
</script>
<style lang="stylus" scoped>
  .list
    position: absolute
    top: 1.58rem
    left: 0
    bottom: 0
    right: 0
    overflow:hidden
    .area
      .border-topbottom
        &:before
          border-color: #ccc
        &:after
          border-color: #ccc
      .title
        line-height: .54rem
        background: #eee
        padding-left: .2rem
        color: #666
        font-size: .26rem
      .button-list
        padding: .1rem
        overflow:hidden
        padding: .1rem .6rem .1rem .1rem
        .button-wrap
          float:left
          width:33.33%
          .button
            text-align: center;
            margin: .1rem
            border: .02rem solid #ccc
            padding: .1rem 0
            border-radius: .06rem
      .item-list
        line-height: .76rem
        color: #666
        padding-left: .2rem
</style>
